Compilare: main.cpp:3:0: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas] #pragma GCC optimization ("unroll-loops") In file included from /usr/include/c++/6/cassert:44:0, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:33, from main.cpp:5: main.cpp: In function 'int main()': main.cpp:66:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] assert(tps.size()==n); ~~~~~~~~~~^~~ main.cpp:50:10: warning: unused variable 'okay' [-Wunused-variable] bool okay=true; ^~~~